Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee362cc77d3ad6a9…

MALICIOUS

PDF

75.2 KB Created: 2021-03-16 14:18:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 42d161a7b35335078106170699608b17 SHA-1: 35d343a74e6863ed3e2ba8767b9a203a65549e3d SHA-256: ee362cc77d3ad6a9767e3dd1919e65247af74a56fa7ff0513921a56bf1dc36ce
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://zajinet.ru/strik?utm_term=what+diseases+are+caused+by+hormones PDF link annotation
    • http://2gusevshop.space/nekerifijobawagovogejowizcjn4m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468554/normal_60179c2ba8976.pdfIn PDF document text
    • http://opsnatur.fun/21507575318alits.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459464/normal_5fdfd7de934b6.pdfIn PDF document text
    • https://cdn.sqhk.co/pulafefer/cNxYhar/xejupa.pdfIn PDF document text
    • http://winoorama.website/pikimusiveborilepoh9615.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452385/normal_5ff71183bedf9.pdfIn PDF document text
    • http://fabermanufacture.ru/how_to_do_vif_in_rhj2y0.pdfIn PDF document text
    • https://cdn.sqhk.co/busoleva/dFhiwUs/vampires_wife_dress_green.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446161/normal_6041dc8ada67d.pdfIn PDF document text
    • http://rineset.xyz/quran_in_english_application_download7fawa.pdfIn PDF document text
    • http://hushseo.online/36225721979zfokx.pdfIn PDF document text
    • http://cheapestshop.xyz/468914633196lr1b.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/jcjcgjY/sutipibuzuwifiloje.pdfIn PDF document text
    • https://cdn.sqhk.co/xalibolopov/gjVhehh/y8_games_mutant_fighting_arena.pdfIn PDF document text
    • http://govnososal.xyz/62662025143l3yyl.pdfIn PDF document text
    • http://santaparker.store/sunudinowopatikwg9ui.pdfIn PDF document text
    • http://creditscorehelp.info/living_books_just_me_and_my_mom6x19f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/poresi/88523465030.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/buddy_holly_true_love_ways.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a4a4ea2-de5a-434d-8df8-c9218570d8a6/mazalekomomegujo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80249f8b-d473-4778-9193-299696871bdf/lukunitutibel.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/romuzafememubomuto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/674a6c77-f353-4058-a70b-2b13ca53a73b/66338889851.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DF 5400 bytes
SHA-256: 122ff828066a1b2f3afd2610002c9bedefe5239d697b755f9868abf04f613193
font_01_sfnt_off0000fa27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA27 11320 bytes
SHA-256: 2814ee454c313d2ff94a516401ec87935fa182f1fc755dae3921c28295581808

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